Wildcard manga

Wildcard summary:

Can the world change through the power of imagination!? Daisuke Yamomoto is an 8th grader who has Chuunibyou syndrome, but things get little bit out of hand as he was bullied and almost forced to commit suicide. He didn't do so in the end and discovered an app called "Arcana." Afterwards the mysterious figure from his imagination appears, and his imaginary world turns into reality. [Batoto]