Naruto: the Boy with the Gift Bag

Goddess Athena, give me strength! If you want strength, open a gift pack~ A boy who has gained the power of a saint is about to bring peace to the ninja world! The protagonist was reincarnated in the world of Naruto. In order to praise his brave deeds in his previous life, the gods gave him a system. . . . . . . . . The protagonist's system is not against the will of God, nor is it cheating. It just has a little gift pack, just a few hundred million gift packs.