It's a diamond. Pallet library

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Hiyaichi Kono, who was the ace of Little League Baseball, joined the baseball club of Dai-dai-tsuke-san-ko aiming for his dream Koshien.
Since it was a strong baseball club, the practice was hard and the competition between first graders who aimed for regular was fierce. Among them, Chiten was a strong opponent.
However, Hiyaichi became unable to play baseball due to a sudden accident. In despair, Hiyaichi felt intense jealousy for Chiten.
That feeling soon made him feel like supporting Chiten, and even more.