まいにちいっしょ プレイ賞 Trophy in Mainichi Issho
いつも まいにちいっしょ を遊んでくれてありがとう！
How to unlock まいにちいっしょ プレイ賞
UNOBTAINABLE DUE TO SERVER CLOSURE
[Mainichi Issho Player Prize
Thanks for playing Mainichi Issho!]
First, download the game from the Japanese PS Store (it's free). Install it onto your Hard Drive, then keep going through menus until it requires an update. Let the latest update finish and straight after it's done, the trophy will pop up.