2026年冬アニメ

勇者パーティーにかわいい子がいたので、告白してみた。

月虹ラブコメファンタジー異世界 2026年1月6日〜3月31日

Youki, once human and now reincarnated as a demon, holds a middling position as one of the Demon Lord's subordinates, tasked with defeating the hero's party. But when the hero's party — including the cleric Cecilia — storms the Demon Lord's castle, Youki falls for her at first sight and resolves to confess his feelings. This is a wonderfully "pure," slightly chuunibyou romantic comedy fantasy between a human and a demon.

📝 Highlights

👥 Characters

💫 Foreshadowing & Quotes

❓ FAQ

🌟 Featured Comments

📝 Highlights & Appeal Light spoilers

01① A romance sparked by a demon's love at first sight

The story kicks off when Youki, a lowly demon subordinate, falls at first sight for Cecilia, the cleric of the hero's party he's supposed to be fighting.

02② An adventure in human society after a failed confession

Though his first confession fails, Youki takes Cecilia's advice and dives into human society, starting a new life as an adventurer.

03③ The most "pure" romance in another world

Despite his occasional chuunibyou flair, Youki's earnest devotion to Cecilia has made this a beloved, pure-hearted romantic comedy.

04④ The divide between humans and demons

Watching Youki close the distance despite the handicap of a romance between naturally opposed races is one of the show's highlights.

05⑤ Animation production by Gekkou

Animation studio Gekkou handles the visuals, carefully rendering the characters' expressions with soft, romcom-appropriate artwork.

06⑥ OP "Lavish!!" / ED "Kimi Kouryaku Game"

The OP "Lavish!!" by Yoshino and ED "Kimi Kouryaku Game" by Hiyori Omiya bring a pop, upbeat energy fitting the romcom tone.

07⑦ World premiere at AnimeNYC2025

The teaser PV had its world premiere at the Crunchyroll panel of AnimeNYC2025, drawing attention from overseas fans as well.

08⑧ Sourced from Futabasha's Monster Comics

The original novel by Suisei was adapted into a manga by Kairi, serialized in Futabasha's Monster Comics, with 14 volumes published as of July 2026.

💡 Key Points & Predictions Some spoilers

The series concluded in March 2026 after 13 episodes. Streaming is the best way to catch up on how far Youki and Cecilia's romance progressed.

Tap to reveal

🧾 Story So Far Contains spoilers

Across 13 episodes, Youki — his first confession to Cecilia a failure — dives into human society on her advice, working as an adventurer while gradually closing the distance between them.

Tap to reveal spoiler

✅ Recommended Viewing Points

Recommended for fans of isekai romantic comedies and anyone curious about a love story that crosses the divide between races. The balance of chuunibyou flair and pure-hearted romance is its charm.

👀 Trivia & Fun Facts

・The original web novel by Suisei began serialization on Shosetsuka ni Narou in 2013
・The manga adaptation by Kairi is serialized in Futabasha's Monster Comics
・The teaser PV had its world premiere at AnimeNYC2025 in New York

Youki (CV: Kohei Amasaki)

Once human, now reincarnated as a demon — the protagonist who falls for Cecilia at first sight and resolves to confess.

Cecilia Aqualain (CV: Kana Hanazawa)

The cleric of the hero's party — the kind-hearted heroine Youki falls in love with.

Yuuga (CV: Ryohei Kimura)

A member of the hero's party who plays a role in the story.

Mikana (CV: Yuko Natsuyoshi)

A character who adds color to the story, voiced by Yuko Natsuyoshi.

Raven (CV: Ayumu Murase)

A character involved around Youki, voiced by Ayumu Murase.

Happiness (CV: Iori Noguchi (=LOVE))

A character voiced by Iori Noguchi of the idol group =LOVE.

Duke (CV: Toshiki Masuda)

A demon-side character in the story, voiced by Toshiki Masuda.

Sheak (CV: Minami Tanaka)

A character who colors Youki's adventures, voiced by Minami Tanaka.

💫 Unresolved Foreshadowing Contains spoilers

・When Cecilia will learn Youki's true identity as a demon is a major focus of the story
・How the divide between humans and demons will affect their relationship is also worth watching

Tap to reveal spoiler

💌 Predicted Viral Quotes for Next Season

・Youki's do-or-die confession scene blends chuunibyou flair with heartfelt sincerity for a memorable moment
・Cecilia's advice after the failed confession stands out as the spark that sets the rest of the story in motion

What kind of anime is “There Was a Cute Girl in the Hero's Party Guide”?

What are the theme songs (OP/ED) of “There Was a Cute Girl in the Hero's Party Guide”?

You can find the theme songs of “There Was a Cute Girl in the Hero's Party Guide” ranked by view count in the anime song ranking on the homepage. Each song’s page also shows a chart of its view-count history.

How can I rate or comment on “There Was a Cute Girl in the Hero's Party Guide”?

Use the rating section on the left (PC) or top (mobile) to give a star rating (out of 10) or a like. You can also share your thoughts in the comment box at the bottom of the page. A nickname is optional.

🗨 ヨウキ応援勢 ❤ 276

Youki is a demon but so pure when it comes to love — I can't help but root for him.

🗨 セシリア推し ❤ 234

Kana Hanazawa's Cecilia is so kind that I'd fall for her too, demon or not.

🗨 厨二演出好き ❤ 201

The chuunibyou phrasing in the confession scene is embarrassing but the sincerity really comes through.

🗨 異世界ラブコメ勢 ❤ 172

A romance crossing the divide between races is a classic setup, but the pacing between Youki and Cecilia feels just right.

🗨 OP「Lavish!!」勢 ❤ 149

Yoshino's OP is pop and upbeat — it captures the romcom vibe perfectly.

🗨 月虹の作画評価勢 ❤ 127

Gekkou's animation has such soft expressions that fit the romcom mood perfectly.

🗨 人間社会編が好き ❤ 103

Youki's struggle as a fledgling adventurer in human society after his failed confession is a lot of fun to watch.

🗨 AnimeNYC組 ❤ 81

Hearing it premiered in New York first made me happy to see it's popular overseas too.

🗨 原作既読勢 ❤ 63

The manga already has 14 volumes — I hope the anime brings it a lot more recognition.

🗨 続きが気になる勢 ❤ 46

It wrapped up nicely in 13 episodes, but I want to see even more of where their romance goes.

💬 Comments

タイトル	勇者パーティーにかわいい子がいたので、告白してみた。
制作	月虹
放送時期	2026年1月6日（火）〜3月31日（火）全13話
放送局	TOKYO MX、BS11、AT-X、北海道放送、RKB毎日放送
原作	水星（原作）／海李（漫画）双葉社「モンスターコミックス」連載
OP/ED主題歌	OP「Lavish!!」吉乃／ED「キミ攻略ゲーム」大宮陽和
ジャンル	ラブコメ／ファンタジー
公式サイト	yuukawa-anime.com