Useless Wizard

Too many time skips and mc is too soft. Have 20 years of life only and then cares too much about some world rules and what not. MC turn 8 year old and travel out of home to some dungeon city where at first gets rip off by adventure guild person to who he sells magic stones and then the same person wants to rob the mc and later stalk the mc to be in his party and after get a monster wave to attack mc he become a mc party member after some sad story of being isekai from Japan. While being total loser and serious weakling even tough is basically immortal and then comes 6 years time skip.

Needs to save his lover and then have like 5 years to live but still does dumb things. Also there is best school in the country to enter but the examiner is a classist who makes it as impossible as possible to not get the mc enter the school and then there is a fighting teacher who wants to steal the mc dagger. Like prestige school but full of corruption. MC also being adventurer for like 6 years but dont have adventurer rank or anything while go to adventurer guild to take a mission and then the adventurer guild don’t believe that the mc with his party took out the dragon that made no sense as the reward was a joke and then showing the materials of the dragon and they think ahh the peasant commoner have like bought the materials. I would think that being like 6 years adventurer the rank would be already high rank and there be trust.

Then there seems to be chapters missing between chapter 38 and 39 while even the 39th chapter is pretty messy. As chapter 38 end with like flashback and then it seems like there is a time skip to half of the battel being done already and the battel is with different enemy as it’s some angel and not the dark magician