https://twitter.com/Thomasintokyo/status/843486342621216769
K-3 (Keisan)
Original design: son 設計原案:兒子
https://pbs.twimg.com/media/C7SqWKqUwAAShrx.jpg
Illustration : dad 插圖:爸爸
https://pbs.twimg.com/media/C7SqWKxUwAA3JIM.jpg
"Do you like math? "
害我馬上跟隨這老爸的推特,老爸超屌的 XDDDD