Well, that was a fun read.
Despite a whole lot of fanservice and perverted lolicon in almost every chapter, Iori unfortunate circumstances made him get closer to family once lost and had plenty of fun being a kid once more.
Also, made him fallen in love with his crush as she really was, not just the kinda goofy person Mikuru were in school, but also a caring and responsible that will be at his side despite any circumstances. He clearly had different impressions earlier in the story, but seeing her how she really was deepened Iori love to Mikuru.
10/10 from me.
Thanks for scanlation till the end!