5-toubun no Hanayome*

These Anime all can be found to have a very homogenous plot structure [overall story] and curve [development of the events/story] and can be distinguished from other anime of similar seinen harem theme.

Major characters include our MC and ~5 girls. Initially, our MC is unaccepted by the girls who refuse another the opportunity to invade their group. Though eventually, MC is able to gain their trust [and unintentionally their affection].

These harem anime are a bit different, as the plot is not just a bunch of girls fawning over a guy. Do watch them and feel the interconnection between these anime.