I get why people think this was a pointless arc, but I kinda liked it somewhat.
It's not like his amnesia in ever gonna be a threat, so I knew from a mile away that this was meant to make some other character grow up. And I kinda dig Persia taking initiative and Hasuki struggling with being loyal to Romeo's wishes. Predictable, but not worthless, for me at least.
Also, "I was a lolicon" made me laugh way harder than I thought. So I got that out of this.