'''Spring Onion Mastery''' permanently increases the sell price of [[Spring Onion]]s by 5x.
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'''葉タマネギマスター'''は、[[葉タマネギ]]の売却価格を永久に5倍に引き上げます。
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To obtain Spring Onion Mastery, the player must first earn 8 hearts of [[friendship]] with both [[Jas]] and [[Vincent]], then trigger a cutscene by entering [[Cindersap Forest]] during [[Spring]] on a sunny day between 6am and 5pm. A cutscene will play, during which Vincent shows the player how to clean Spring Onions by removing insects.