>>2748343I remembered the name of that doujin, its "Hop Step Leap!" by Hamao. It's not really SFW(nothing sexual is shown, but there is some nudity), so I won't link to it, but it's on dynasty reader if you want to look it up. Worth the read if you love Ritsu x Mio stuff and are ok with some nudity.
While I'm at it, if you don't read much doujinshi, don't like the idea of reading fanfics, or are new to K-on in general, go read one called "Unforgettable Flowers and Rainbows" by Okeya. I can't recommend it enough. It's 100% SFW, it's very well written and illustrated, and it made me feel the feels.
