DIANA Bunko's 'The Monster Princess's Marriage' Released on April 7, 2026!

ICE Inc. (Headquarters: Chiyoda-ku, Tokyo; President: Katsushi Hamasaki), a media business subsidiary of the Impress Group that handles digital-first publishing, has released 'The Monster Princess's Marriage' (Author: Uro Sunagawa / Illustrator: Chiho Shin'ishi) from its romance novel label for adult women, DIANA Bunko, on April 7, 2026. It will be distributed on various e-book stores such as Kindle and Comic Seymour.

**The Monster Princess's Marriage** Author: Uro Sunagawa / Illustrator: Chiho Shin'ishi

**■Story** **That bride, the strongest and most beloved -- Max combat power, diligently working on her femininity! A romantic comedy of misunderstandings between a muscle-bound princess overflowing with love and a prince who is completely put off by her.**

The Gremund Kingdom and the Maxima Kingdom have long been at war. To achieve peace, a marriage was arranged between the young Prince Richard and Princess Adel. As time passed, the adult Adel visits Richard for a 100-day 'familiarization period' before the wedding. Richard, nervously awaiting his fiancée's arrival, remembers her innocently telling him she liked him and expects she has grown into a beautiful lady. And indeed, the Adel he meets is a beauty beyond imagination.

However, when an assassin attacks Richard during the audience, Adel surprisingly takes down the attacker in an instant!? A completely unexpected, completely unconventional fiancée. Richard, who prefers soft and fluffy women, learns for the first time that Adel has the nickname 'Monster Princess'.

Meanwhile, Adel, who has nurtured her love by gazing at his portrait, is overflowing with affection for Richard...