skos:altLabel | - Sekai-ichi Hatsukoi
- Sekai-ichi Hatsukoi 2
- Sekai-ichi Hatsukoi: Propose-hen
- Sekai-ichi Hatsukoi: Yokozawa Takafumi no Baai
- The World%27s Greatest First Love
- The World's Greatest First Love 2
- The World's Greatest First Love: Proposal
- The World's Greatest First Love: Proposal Arc
- The World's Greatest First Love: Proposal arc
- The World's Greatest First Love: Valentine Arc
- The World's Greatest First Love: Valentine arc
- The World's Greatest First Love: The Case of Takafumi Yokozawa
- The World’s Greatest First Love: The Case of Takafumi Yokozawa
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