Into another world with dragon balls

Introduction: After the protagonist travels through, a Dragon Jewel Book appears on his body, from which he can redeem everything that has appeared in the Dragon Ball world, including various martial arts, moves, black technology, etc... Shenlong cannot be exchanged!But it can be exchanged for Dragon Balls, and if you collect seven of them, you can summon Shenlong, and you can even exchange for Namek blood, and make Dragon Balls yourself, haha, it’s really hard to be invincible.