An ordinary girl Natsu was one day cursed by a devil (character name can be changed). Throughout threats befalling her, she struggles to collect energy (dpt), so called "Haiki (lit. Desuetude Energy)" in this story. In order to do so she will be involved in various H things regardless of her will and, with blooming flowers in her heart, she will get lewder.
This is a battle-less exploration based game with limitation in a number of days. Until the deadline she has many things to do for instance: to seek H events or not, to work temporarily, to eat snacks, to collect mysterious medals and so on. Some values in her status may affect the ending scene.