Board Thread:The Last Sovereign Discussion/@comment-27713488-20180605045448/@comment-35006067-20180605085155

If the wiki is to be believed, we have:

Easy to max in a good playthrough: Aka, Balia, Hilstara, Janine, Megail, Nalili, Qum D'umpe, Yarra (8) Maxable, but need some careful route planning: Dari, Iris, Robin, Uyae, Wynn (5) Maxable, but only if you really focus on it, disregarding a lot of things: Altina, Trin, Varia (3) Not enough opportunities to max: Riala (1) Not maxable per design: Carina, Lynine, Orilise (3)

In my own best playthrough, I have maxed 11 people if I remember well (non optimal research order for Dari, Wynn close to the goal but missing it by a bit).

As for thresholds, I would say 8 maxed harem members is a "good" result, 12 an "excellent" one, with 6 being "acceptable", and 10 "very good".

As for max max, probably 14 (all easy, all medium, one hard).