User blog comment:Koishi-Komeiji/Alina Gray/@comment-4802891-20190905153946/@comment-24965192-20190905223251

Isn't it 4 turns of effect? Neither the star regen nor the NP regen happen on the 1st turn, but you still get stars on the 1st turn itself due to the stars on demand paired to it. Then you get 3 more times of half the amount of stars + a 10% NP regen. The NP regen also being a 2nd NP charging skill that Alina already has on her first. She's capable of generating 50% NP and 50 stars by herself over the course by 4 turns.