Taking a 1.6 billion loss is so ridiculous that no one would actually do that, no matter what...he should have just set a price no one would pay and keep her for a bit more
Why couldn't they just go with a "he managed to convert some mana from the attack to activate time travel again"? or sth like that since he started the manga by using it in his old body? Would have been better than the: 'lol, miracle, yo' they went with xD
if we're dealin with miracles, why...
Well, hopefully they will have a better plan in the next chapter, bcause so far, I am not impressed with how they are going about this.
Also, if time travel magic needed the magical energy of the nuke that guy used after breaking all his limits, how'd old Zeff of the original timeline just do...