その許嫁(よめ)は初恋を知らない
The free version of that fiancée
Two female lead routes and eight endings, expected to last four hours, available on Windows and mobile browsers.
More engagement packs
Added Ayaka route, totaling three routes with 12 endings, estimated at six hours; Additionally, it includes three sets of situational voice lines and the complete instrumental audio for 'First Love Love Letter,' which will be released on PC on February 6, 2026, and on mobile on February 13.
First Love is so good
"First Love Nice Guide" used in the OP "That Fiancée Doesn't Know First Love."
First love letter
"First Love Love Letter" is used as the ending theme for "That Fiancée Does Not Know First Love."
Companion system
In the story, the national marriage contract system arranges a marriage for individuals at age 16, and the new semester transfers the corresponding partner to the school.
マチェラ
The use of this in the story advances the relationship between the character and the betrothed wife, aiming for 100% compatibility.
Hiiragi: Hanakuya
Hiiragi Hanakuya Works in 'That Fiancée (Yome) Does Not Know First Love' is signed as a prop illustration.
Last quarter
She wrote the lyrics for 'That Fiancée (よめ) wa Hakoi wa' (The Promised Wife (よめ) wa Hakoi wa Katsu
Lun
He signed as a video producer for Tochizai's 'That Promised Wife (よめ) wa Hatsukoi wo Shiranai.'
tmk93
TMK93 In 'That Fiancée Does Not Know First Love,' the music was credited as the soundtrack.
ラングドシャ
In Langue de Chat's 'That Fiancée (yome) Does Not Know First Love', she is credited for the Japanese dubbing of this work.
Honoka Tachibana
Honoka Kitada performed the song "Sono Yume wa Hachikoi wa Hakukoi wa Hakukoinai" (Sono Promised Bride (yome) wa Hatsukoi wo Nainai.'
えもこ
In Emoko's work 'That Fiancée (Yome) Doesn't Know First Love', she is credited for the Japanese dubbing of this work.
はにろ
Signed as a character illustration in Hanirozai's 'That Fiancée Does Not Know First Love.'
ふみん
Fumin signed the name for arrangement, guitar, and mixing in 'That Fiancé (yome) Doesn't Know First Love.'
がび
In Gabizai's 'That Fiancée (Yome) Doesn't Know First Love', she signed the title for the Japanese dubbing of this work.
That love is on hold, so the production support committee is holding on
Due to the suspension, the film was created by the production support committee under the title 'That Fiancée Doesn't Know First Love.'
Seiya Hatakeyama
Seiya Hatakeyama signed the composition for his work 'That Fiancée (Yome) Does Not Know First Love.'
Hatsune Nonaka
Hatsune Nonaka signed the lyrics for the poem 'Sono Shikoi wa Hatsukoi wa Hatsukoi wa Hatsukoinai.'
Rin Kojou
Rin Kojo is credited as the Japanese dubbing for the work in 'Sono Shikko (よめ) wa Hatsukoi wo Shiranai.'
Rin Sakuraba (Her fiancée doesn't know her first love)
The official cast list lists the voice actors, but their exact relationships have not been disclosed.
Hibiki Boso (His fiancée doesn't know his first love)
Voice cast character listed in the official cast list.
Shima Otsuki (Her fiancée doesn't know her first love)
The official cast list lists the voice actors, but their exact relationships have not been disclosed.
Ayaka Honjo (Her fiancée doesn't know her first love)
The female lead is a route with more engagement packs.
Tsutsumi Ko Setsuran (Her fiancée does not know her first love)
One of the heroines in the free edition's readable route.
Ayae Shiratani (His fiancée doesn't know his first love)
One of the heroines in the free edition's readable route.
A.M.I. (The fiancée doesn't know her first love)
The official cast list lists the dubbing characters, but the abbreviations of their names are not sufficiently specified.
That fiancée does not know his first love
"That Fiancée Doesn't Know First Love" is a dubbed visual novel centered around the engagement system and first love. In the fictional society of the story, a fiancée is arranged at sixteen, and the arrival of a transfer student changes the originally established relationship.