“私が作りました”うみ is a Weiß Schwarz card from TVアニメ『Summer Pockets』 SMP/W137-010. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【ACT】 BACKUP +X. X equals the number of your 《Summer Pockets》 characters times 500.
This card was printed in Japanese only; the English text above is an unofficial community translation.