Quick answer
Happilia is earned by helping villagers and contributing to the development of Teradea. Its exact levels and rewards have not yet been disclosed.
Confirmed facts
- Helping villagers earns Happilia.
- World development contributes to it.
- It is part of the restoration progression.
- Whether it is spent like currency is not confirmed.
What players should know
This answer is limited to information published by Natsume. Exact values, triggers and platform behavior will be added only when official store pages or verified gameplay provide evidence.
Still to verify
- Launch-day gameplay verification
- Platform-specific differences
- Any later publisher clarification
Source policy
Checked July 18, 2026 against Natsume’s March 11 title announcement, June 18 trailer announcement and official store information where relevant. Unknown mechanics are excluded rather than inferred from earlier Harvest Moon games.