Akarui Sekai Keikaku, Mousugu Shinu Hito Recommendations
When it comes to relationships, Akarui Sekai Keikaku and Mousugu Shinu Hito has a rather peculiar way of getting their message across. Both series has a main protagonist who attracts a decent amount of girls. However, they are put under an unusual circumstance that involves 'love or death'. Mousugu Shinu Hito is noted for more mature content and graphic violence on occasions while Akarui Sekai Keikaku usually maintains a lighthearted mood.
Both mangas are about couples being forced to pair up or dying, and both have yandere childhood friends.