Angel picked wrong soul. Granted a wish for reincarnation, MC asked for a flying castle full of Golem (because he loved Laputa).
Classical meek MC who just wanted to chill but ended up saving people and pitiful weak FL. Honestly this is so cliché EXCEPT for the CASTLE AND THE GOLEM!! I’ll read this just for them. A1 is the real MC period XD
Tenkuu no Shiro o Moratta no de Isekai de Tanoshiku Asobitai