The Fierce 'Stepsister War' Begins! 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' Released on June 5th / PASH! Bunko

Key facts

  • The Fierce 'Stepsister War' Begins! 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' Released on June 5th / PASH! Bunko
  • PASH! Bunko, an imprint of Shufu to Seikatsu Sha, will release the light novel 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' on June 5, 2026. The story depicts a 'stepsister war' between twin sisters vying for their brother's attention.
  • Source: PR Times
  • Date: June 3, 2026

Direct answer

PASH! Bunko, an imprint of Shufu to Seikatsu Sha, will release the light novel 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' on June 5, 2026. The story depicts a 'stepsister war' between twin sisters vying for their brother's attention.

Citation
The Fierce 'Stepsister War' Begins! 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' Released on June 5th / PASH! Bunko (June 3, 2026), PR Times
Source
PR Times
Date
June 3, 2026
PASH! Bunko, an imprint of Shufu to Seikatsu Sha, will release the light novel 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' on June 5, 2026. The story depicts a 'stepsister war' between twin sisters vying for their brother's attention.
新製品NQ 0/100出典：PR Times

📋 Article Processing Timeline

  • 📰 Published: June 3, 2026 at 21:00
  • 🔍 Collected: June 3, 2026 at 12:21
  • 🤖 AI Analyzed: June 7, 2026 at 01:05 (84h 44m after Collected)
From PASH! Bunko (Shufu to Seikatsu Sha), the light novel 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' will be released on Friday, June 5, 2026. Author: Hoshino Hoshino. Illustrator: Shio Koji. Price: 800 yen + tax. ISBN: 978-4-391-16722-1. Synopsis: Yuto Otaru has twin sisters who are the talk of the town: the honor student sister Yuri Otaru and the blonde gal sister Kairi Otaru. Proud of his sisters, Yuto one night overhears his parents' conversation: 'Yuto is not blood-related to Yuri and Kairi.' Shocked by this revelation, Yuto notices the sisters' eyes gradually changing... A fierce 'stepsister war' begins between the twin sisters over their brother, who is supposed to be unaware of the truth. Related information includes URLs for 'Comic PASH! neo' for reading the comic adaptation and original manga, the official PASH!BOOKS website, official X (formerly Twitter) account, and official Amazon store. Inquiries: Shufu to Seikatsu Sha, Literature & Comics Editorial Department, Editor-in-Chief Yamaguchi, Tel: 03-3563-5315, Email: pash-up★mb.shufu.co.jp (replace ★ with @).

FAQ

What are the key facts in this article?

PASH! Bunko, an imprint of Shufu to Seikatsu Sha, will release the light novel 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' on June 5, 2026. The story depicts a 'stepsister war' between twin sisters vying for their brother's attention.

What is the direct answer?

PASH! Bunko, an imprint of Shufu to Seikatsu Sha, will release the light novel 'Only I Know My Sisters Are Stepsisters ~ Twin Beautiful Sisters Want to Seduce Their Unknowing Brother 1' on June 5, 2026. The story depicts a 'stepsister war' between twin sisters vying for their brother's attention.

What is the source and date?

PR Times: https://prtimes.jp/main/html/rd/p/000001211.000072639.html | June 3, 2026

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