Can't find missing manga chapters but I found a summarized translations per chap here: http://uraboku-fan-club.tumblr.com/post/86597151366/uraboku-chapter-28-52-summaries
- See more at: http://www.mangago.zone/read-manga/uragiri_wa_boku_no_namae_wo_shitteiru/#sthash.V7y7H0yT.dpuf
Where did you find the Spanish chapters?
It just when i was looking for the missing chapter, i saw them like that.
If you are referring to 30-35 here is the links
https://drive.google.com/open?id=0B3XHqWXpE5UqaDFWa0VlX1dOUGs
They have all the chapters 30-35
Just if you're interested chapters 30-35 are in Spanish. If you don't speak spanish then at least you could understand them better than Japanese. Also if any of you know where I can find 48-54 either English or Spanish, I would be very thankful.