| Happy piece | |||||||||||||||||||||||||||||
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| Japanese | ハッピーピース | ||||||||||||||||||||||||||||
| Romaji | Happi piisu | ||||||||||||||||||||||||||||
| English | Happy piece | ||||||||||||||||||||||||||||
| Item Description | |||||||||||||||||||||||||||||
| ? (edit) | |||||||||||||||||||||||||||||
Happy pieces are items used for unlocking happy card side stories. To unlock the first side story of a 2☆ card, 200 happy pieces are needed. To unlock the second side story of a 2☆ card, 1000 happy pieces are needed. To unlock the second side story of a 3☆ card, 2000 happy pieces are needed. To unlock the second side story of a 4☆ card, 4000 happy pieces are needed.