Season 1Episode 4

Warmth of the Heart

Premiere date: 27 July 2025
Runtime: 24 min
TMDB episode rating: 7.7 / 10 · 10 votes

Episode overview

Though Rintaro becomes more comfortable with Kaoruko during their study session, he faces unexpectedly strong opposition to their growing bond.

Episode stills

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Episode crew

Jiro Arimotoありもとじろう Director Rino Yamazaki山崎莉乃 Writer

Miyuki Kuroki黒木美幸 Storyboard artist, Opening/Ending Animation Ayaka Shimizu清水彩香 Special Effects, Compositing Artist Kohei Tokuoka徳岡紘平 Supervising animation director Shiki Kadowaki門脇四季 Key animator, Opening/Ending Animation Hazuki Iida飯田葉月 Background designer Rika Saito斎藤梨華 Background designer Kimiyo Saito斉藤貴美代 Background designer Makiko Hirasawa平沢真紀子 Background designer Sachiko Ito伊藤幸子 Compositing Artist Kaito Ishizaka石坂海斗 Compositing Artist Futa Nakao中尾風大 Compositing Artist Yudai Shiokawa塩川雄大 Compositing Artist Asanobu Imari今利晨頌 Compositing Artist Akari Morone諸根朱里 Compositing Artist Yuka Sasaki佐々木優香 Compositing Artist Yohei Kadoaki門明洋平 2D Artist Nanaha Kawaguchi川口七葉 2D Artist Aika Kawasaki川崎愛香 Key animator Rieko Noguchi野口莉英子 Key animator Yoko Nukumizu温水陽子 Background designer Zhang Yun张云 Key animator, Animation director Hidekazu Yamana山名秀和 Animation director Lim Ju-eun임주은 Animation director Keiko Ijima井嶋けい子 Animation director Kiko Morifuji森藤希子 Animation director, Key animator Yasuho Tamura田村恭穂 Animation director, Opening/Ending Animation Takahiro Ogawa小川貴弘 Production Assistant Ryota Abe阿部亮太 Key animator Akiko Motoyoshi本吉晃子 Key animator Yuki Ito伊藤幸 Key animator Kanako Ueda植田華菜子 Key animator Ye Xin叶鑫 Key animator tannpakuたんパク Key animator Muhammad Ali Mukhtar Key animator Ryota Azuma東亮太 Key animator Jung Sae-byeok정새벽 Key animator Koyuki Imagawa今川小雪 Key animator Kwon Hye-min권혜민 Key animator Minori Saitoサイトウミノリ Key animator

Aoku Tamura田村青空 Key animator Mirai Saito斉藤未来 Background designer Marie Murata村田真理恵 Background designer Izumi Ozawa小澤泉 Background designer Tomoe Morikawa森川友恵 Background designer Tomomasa Ito伊藤誠将 Compositing Artist Natsu Nishioka西岡奈津 Compositing Artist Takaaki Yamada山田鷹揚 Compositing Artist Yoko Morita森田陽子 Compositing Artist Tran Hanh Background designer Phan Tu Background designer Pham Bao Background designer Nguyen Du Background designer Ngoc Anh Background designer Hiroya Osaki大崎寛也 Art Department Production Assistant nyopilistにょぴりすと Key animator Dong Chang Key animator Tomohiko Kan菅友彦 3D Supervisor Maiko Hado羽土真衣子 Opening/Ending Animation

Haruka Fujita藤田春香 Opening/Ending Animation Megumi Kouno河野恵美 Opening/Ending Animation Haruto Sakata坂田陽斗 Opening/Ending Animation

Reira Ushio汐れいら Theme song performer

Tatsuya Kitaniキタニタツヤ Theme song performer Odashiおだし Opening/Ending Animation Mizuki Furiya降矢瑞生 Opening/Ending Animation Hiroyuki Kambe神戸洋行 Opening/Ending Animation Yumi Kobayashi小林由美 Opening/Ending Animation Yuji Fujinami藤浪雄士 Opening/Ending Animation Miko Nakashita中下美湖 Opening/Ending Animation Naoki Okada岡田直樹 Opening/Ending Animation Nozomi Beniya紅谷希 Opening/Ending Animation Akira Mukaigawara向川原憲 Opening/Ending Animation Masatoshi Tsuji辻雅俊 Opening/Ending Animation Yumiko Yamamoto山本由美子 Opening/Ending Animation Rie Sukenaga助永理恵 Opening/Ending Animation Shiori Mizutani水谷汐里 Opening/Ending Animation Ayumi Yamane山根あゆみ Opening/Ending Animation Manami Honda本田舞波 Opening/Ending Animation Yayoi Ogashiwa小柏弥生 Art Department Manager Hanako Toyoda豊田華子 Art Department Assistant