RJ - Ryuujin

Mafumi always lifes inside misfortune. His father is a monk who always get debts from gambling. His mother is sick and treated on hospital. One day Mafumi accidentally broke the seal of a weak god. The god planed to make him suffer as a revenge because Mafumi's grandfather sealed him inside a box, but seeing how poor Mafumi's life is he ends up helping him by chasing away the gods around him.