Interest Stacks

Sekaiichi Hatsukoi Watch Order:
1. Sekaiichi Hatsukoi OVA (Mar 22, 2011 to Sep 27, 2011) | OVA | 2 episodes × 21 min. per ep. - Side Story
* 2. Sekaiichi Hatsukoi (Apr 9, 2011 to Jun 25, 2011) | TV | 12 episodes × 23 min. per ep. - Parent Story / Prequel
* 3. Sekaiichi Hatsukoi 2 (Oct 8 – Dec 24, 2011 | TV | 12 episodes × 24min. - Sequel / Prequel
4. Sekaiichi Hatsukoi: Valentine-hen (Mar 15, 2014) | Movie | 1 episode × 15 min. - Side Story
5. Sekaiichi Hatsukoi Movie: Yokozawa Takafumi no Baai (Mar 15, 2014) | Movie | 1 episode × 50 min. - Sequel / Side Story
6. Sekaiichi Hatsukoi: Propose-hen (Feb 21, 2020) | Movie | 1 episode × 21 min. - Sequel

Note: Those with asterisks (*) are the main stories.

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Mangaka: Nakamura, Shungiku https://myanimelist.net/people/1918/Shungiku_Nakamura
Genre: Boys Love, Comedy, Drama, Romance
Themes: Adult Cast, Childcare, Workplace

Tags: BL, Franchise

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Official Sites: http://sekai-ichi.jp | http://sekai-ichi-movie.jp
Wikipedia: The World's Greatest First Love https://en.wikipedia.org/wiki/The_World%27s_Greatest_First_Love
ANN: The World's Greatest First Love: The Case of Ritsu Onodera (manga) https://www.animenewsnetwork.com/encyclopedia/manga.php?id=11261

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Also found here: https://myanimelist.net/animelist/IridescentJaune?status=7&tag=Sekaiichi%20Hatsukoi

Clubs:
♥Sekaiichi Hatsukoi Fans♥ https://myanimelist.net/clubs.php?cid=18200 (Inactive)
Sekai Ichi Hatsukoi fan club https://myanimelist.net/clubs.php?cid=23630 (Inactive)
Sekaiichi Hatsukoi FC https://myanimelist.net/clubs.php?cid=18889 (Inactive)
『YUKINA♥KISA』 https://myanimelist.net/clubs.php?cid=32475 (Inactive)