An advanced system tracks your standing with different characters, requiring specific interactions to "level up" and unlock new events.
You can find Mika at the library or near the cafe where Lucy works. Advancing her arc often involves financial investments, such as helping her with "dog problems". Development and Rework News
To reach higher levels with Rosie (such as Level 4), you must complete tasks like finding specific books on the office PC and interacting with her at certain times of day, such as when she is watering plants.
Happy Summer stands out from standard visual novels by incorporating several interactive systems: