[WIP] April Patreon Rewards Characters

The complete picture can be obtained in Tier3.

In April, additional R18 graffiti was drawn.

 I put it in Tier3.

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完整圖可以在Tier3內獲得。

在4月時段，我額外畫了一些R18塗鴉。

我將它放在Tier3裡面。