Okeya — http://www.pixiv.net/member.php?id=144048

Also known as OK Yeah, The Shakya, Arien, Oke, and theeshakya

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  Ho-kago Comes Again

Monthly RitsuMio For Adults - First Edition by Fukutarou and Okeya K-ON! Doujin released Sep 19 '12 Bath Blushing Lots of sex Mio x Ritsu NSFW Yuri

Monthly RitsuMio for Adults - Special Edition by Fukutarou and Okeya K-ON! Doujin released May 2 '13 Lots of sex Mio x Ritsu NSFW Yuri

The Mio Mio Mio Mio Mio x Ritsu Book K-ON! Doujin released Oct 2 '13 Clones Comedy Harem Mio x Ritsu Wishful thinking Yuri

August 21st K-ON! Doujin released Dec 10 '13 Mio x Ritsu Yuri

HEY!!!!! I LOVE YOU!!!!! FOREVERMORE!!!!! K-ON! Doujin released Aug 26 '14 Comedy Mio x Ritsu Yuri

Unforgettable Flowers and Rainbows K-ON! Doujin released Sep 25 '14 Mio x Ritsu Romance Yuri

Honey! ~ Yumikuri Anthology~ by Fukutarou, Kou, Okeya, Shakeda Mamoshirou, and Sora Attack on Titan Doujin released Jan 28 '15 Christa x Ymir Comedy Yuri

MioRitsu for Adults - Rebellion Story by Fukutarou and Okeya K-ON! Doujin released Feb 25 '15 Lots of sex Mio x Ritsu NSFW Reversal Romance Yuri

January 15th K-ON! Doujin released Jul 20 '19 Birthday Blushing Mio x Ritsu Yuri

Valentine's RitsuMio K-ON! Doujin released Jul 30 '19 Blushing Comedy Mio x Ritsu Reversal Valentine's Yuri

Hito no Nozomi no Yorokobiyo Love Live! Doujin released Sep 23 '20 Eli x Nozomi Yuri