I got received a letter from app game and peerless in another world

Yuki Hirofumi, 18 years old, and a high school student. He got bullied by his classmate. For that reason, he shut down on his room and playing his Angelic Slash everyday, Angelic Slash is a "Gacha" game that can draw many maiden and strong character and this game popular among boy. During playing Angelic Slash Yuki tried to drawing his Cardelina, this was his dream to obtain her. Yuki saving his gemstone until 25100 only to get Cardelina, because he knew UUR rare card are extremely rare to get the character that's why he saving gemstone as many as can before he can get Cardelina. After the difficult time for obtain UUR card Yuki finally get Cardelina and rejoice in his room. Nevertheless, Yuki got some of strange mail on the game in the same time he obtain his UUR character. He read the mail and feel excited after saw the detail, and he click the button to transfer him to the fantasy world to meet his UUR character and start his new live in the different world.