Sen Co., Ltd., Provider of Comprehensive Childcare Tech 'Hai Cheese!', Achieves Faster Troubleshooting and 3x Release Frequency Months After Implementing New Relic
Sen Co., Ltd. implemented New Relic's observability platform for its childcare system 'Hai Cheese!', drastically reducing troubleshooting time to mere minutes and tripling its feature release frequency.
📋 Article Processing Timeline
- 📰 Published: April 7, 2026 at 20:00
- 🔍 Collected: April 7, 2026 at 11:30
- 🤖 AI Analyzed: April 20, 2026 at 22:27 (322h 56m after Collected)
New Relic K.K. (Headquarters: Chuo-ku, Tokyo, hereinafter "New Relic"), a provider of an observability platform for digital businesses, announced that Sen Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo, hereinafter "Sen"), the provider of the comprehensive childcare tech service "Hai Cheese!", has implemented the observability platform "New Relic" and realized various benefits just months after starting production operations.
Founded in October 2004, Sen operates a childcare support business that aims to improve the burden on childcare organizations and parents through IT, approaching both the mental and physical well-being of children. Its core SaaS comprehensive childcare tech service, "Hai Cheese!", operates under the concept of "Peace for Children." It aims to nurture children's happiness alongside childcare facilities like nursery schools and kindergartens, as well as parents. They offer services such as photography and online sales "Hai Cheese! Photo," ICT childcare support "Hai Cheese! System," album production "Hai Cheese! Album," and school lunch/food education "Hai Cheese! Veggie." As of February 2026, over 20,000 organizations utilize the "Hai Cheese!" series.
## Background and History of Implementation
Sen has recently implemented New Relic in the development and operation of the "Hai Cheese! System." The "Hai Cheese! System" is equipped with over 30 features, including "attendance management," "parent communication," "time and attendance," "teaching plans," "record creation support," and "health management." Access to the system concentrates around 8:00 AM on weekdays, which is the start time for childcare workers, with peak requests reaching 18,000 per minute. While stable operation is required even during these peak times, poor system performance had historically become a chronic issue. The system is developed and operated on AWS, but the primary problem was that even when performance degraded, the root cause could not be identified immediately.
Previously, when a system trouble inquiry was received from a customer, they had to first narrow down the timeframe and endpoint of the issue using AWS monitoring services, then collect logs from various sources and analyze them with AI tools. This was an extremely labor-intensive process, taking significant time to identify and address the root cause of the problem. To resolve these challenges, the implementation of observability into the "Hai Cheese! System" was considered.
## Implementation and Effects of New Relic
In August 2025, Sen conducted a comparative study of multiple observability products. As a result, they decided to adopt New Relic, highly evaluating its pricing structure based on user count and data volume (data ingest volume), which made cost control easy, and the robust support system provided by the Japanese subsidiary. Following a Proof of Concept (PoC), production operation of New Relic commenced in October 2025.
Currently, the company's SRE team and the "Hai Cheese! System" development team use New Relic on a daily basis. The implementation of New Relic has brought various benefits within just months of starting production operations.
- Identifying the Root Cause of Occurring Troubles in Minutes
When a performance degradation alert was triggered in the past, it was difficult to pinpoint the cause, often leaving them with no choice but to add resources and wait and see. With New Relic, they can now identify within minutes if, for example, a specific process is straining the CPU. The root causes of problems, including things that were previously invisible, can now be grasped immediately.
- Feature Release Frequency in Hai Cheese! System Tripled
Since the implementation of New Relic, the confidence that any issues in released software can be detected instantly has
Founded in October 2004, Sen operates a childcare support business that aims to improve the burden on childcare organizations and parents through IT, approaching both the mental and physical well-being of children. Its core SaaS comprehensive childcare tech service, "Hai Cheese!", operates under the concept of "Peace for Children." It aims to nurture children's happiness alongside childcare facilities like nursery schools and kindergartens, as well as parents. They offer services such as photography and online sales "Hai Cheese! Photo," ICT childcare support "Hai Cheese! System," album production "Hai Cheese! Album," and school lunch/food education "Hai Cheese! Veggie." As of February 2026, over 20,000 organizations utilize the "Hai Cheese!" series.
## Background and History of Implementation
Sen has recently implemented New Relic in the development and operation of the "Hai Cheese! System." The "Hai Cheese! System" is equipped with over 30 features, including "attendance management," "parent communication," "time and attendance," "teaching plans," "record creation support," and "health management." Access to the system concentrates around 8:00 AM on weekdays, which is the start time for childcare workers, with peak requests reaching 18,000 per minute. While stable operation is required even during these peak times, poor system performance had historically become a chronic issue. The system is developed and operated on AWS, but the primary problem was that even when performance degraded, the root cause could not be identified immediately.
Previously, when a system trouble inquiry was received from a customer, they had to first narrow down the timeframe and endpoint of the issue using AWS monitoring services, then collect logs from various sources and analyze them with AI tools. This was an extremely labor-intensive process, taking significant time to identify and address the root cause of the problem. To resolve these challenges, the implementation of observability into the "Hai Cheese! System" was considered.
## Implementation and Effects of New Relic
In August 2025, Sen conducted a comparative study of multiple observability products. As a result, they decided to adopt New Relic, highly evaluating its pricing structure based on user count and data volume (data ingest volume), which made cost control easy, and the robust support system provided by the Japanese subsidiary. Following a Proof of Concept (PoC), production operation of New Relic commenced in October 2025.
Currently, the company's SRE team and the "Hai Cheese! System" development team use New Relic on a daily basis. The implementation of New Relic has brought various benefits within just months of starting production operations.
- Identifying the Root Cause of Occurring Troubles in Minutes
When a performance degradation alert was triggered in the past, it was difficult to pinpoint the cause, often leaving them with no choice but to add resources and wait and see. With New Relic, they can now identify within minutes if, for example, a specific process is straining the CPU. The root causes of problems, including things that were previously invisible, can now be grasped immediately.
- Feature Release Frequency in Hai Cheese! System Tripled
Since the implementation of New Relic, the confidence that any issues in released software can be detected instantly has