Isekai wa Smartphone to Tomo ni. 2

Video game elements with a strong male lead and a mostly female support cast set in a magical world with underaged heroes leading the way and atypical amenities like guilds and adventure parties. 

Lead is transported to another world full of magic upon accidental death. Gods or angels grant them a single wish or specialty to have as an apology in the new world. They both start meeting others who join their party early on and have to start by learning how the 'new world' works. Konosuba is a sarcasm story against cliches which is it's excuse for having them so they can be made fun of and is a good series, Smartphone world does not have that. 

Same plot where the overpowered MC will marry at least one princess and get a land to build his dream and save other lands and kingdoms