Don't Become an Otaku, Shinozaki! by Hikawa Shou — Completed and Not Updated

Also known as Shinozaki-san Ki wo Ota Shika ni!

Img000003

From Manga Updates:

With her beautiful looks and outgoing personality, Shinozaki Akina used to be the leader of a group of hotties on the top of a class hierarchy. After her high school debut was delayed, however, she finds herself isolated in the class.

Next to Akina sits Sasamura Kaede, an otaku girl who can turn into a bishoujo with her glasses off. Akina decides to get Kaede out of the otaku life and groom her for a perfect high school life, but the only way to get close to Kaede is for Akina to pretend to be a Precure otaku herself...

This series is complete and the remaining chapters can be found on Mangadex.

Volume 1
Chapter 1 released Oct 5 '13
Chapter 2: Hunter's Pride released Oct 11 '13
Chapter 3: The Path All Maidens Take released Oct 30 '13
Chapter 4: Everday Highschool Girls released Nov 5 '13
Chapter 5: A Sick Princess and an Apathetic Horse released Dec 3 '13
Volume 2
Chapter 6: Guys Who Love to Suffer released Dec 18 '13
Chapter 7: Gaming At Home, "Beyond All In the Fog" released Dec 25 '13
Chapter 7.5: Shinozaki Akina and the Flames of Typing released Dec 31 '13 4-koma
Chapter 8: The 24 Hour Battle! released Jan 10 '14
Chapter 9: Even If You're Surrounded, Never Give Up!! released Jan 29 '14
Chapter 10: Finish It, Akina! Friendship Shot!! released Feb 8 '14 Sports
Chapter 11: The Place Closest to Heaven released Feb 22 '14 Nosebleed Swimsuits
Volume 2 Extra released Dec 1 '14 4-koma
Volume 3
Chapter 12: The Place Closest to Hell released Mar 9 '14 Swimsuits
Chapter 12.5: The Siblings Who Are Close, Yet Far! released Mar 16 '14 4-koma
Chapter 13: The Limitless Possibilities of Tabletop Roleplaying Games released Mar 21 '14
Chapter 14: It's Torture in the Inverted Pyramid released Apr 27 '14
Chapter 15: Waiting For You Beneath the Saw released Jun 2 '14
Chapter 16: The Last Little Day Of Summer released Jul 14 '14
Volume 4
Chapter 17: Happiness Time released Aug 19 '14
Chapter 17.5: Summer Greetings released Sep 12 '14 4-koma
Chapter 18: My Summer With You Was... released Oct 27 '14
Chapter 19: The Combat-Ready Cosplayer released Dec 31 '14
Chapter 20: Search-and-Destroy Sneaking Mission released Feb 1 '15
Chapter 21: Thank You for Being Born released Mar 31 '15
Chapter 22: Before Getting Ready for the Festival released Jun 1 '15
Chapter 22.5: Cooking Idiot released Jun 5 '15 4-koma
Volume 5
Chapter 23: Jewel of the Carnival released Jun 18 '15
Chapter 24: The Class 1-B Afterparty released Jul 30 '15 Cross-dressing Maid
Chapter 25: Don't Become An Otaku Shiinamachi! released Aug 12 '15
Chapter 26: She's Just Too Radiant released Oct 28 '15
Chapter 27: Makoto and the Passionate Demon Lord released Nov 25 '15
Chapter 27.5: Happy Happy Birthdays! released Nov 9 '15 4-koma
Volume 6
Chapter 28: Siblings, Hearts, Overlapping released Dec 10 '15
Chapter 29: If You Want It Bad Enough, Make It Yourself released Dec 17 '15
Chapter 30: A Picture Is Worth a Thousand Words released Jan 13 '16
Chapter 31: Christmas Without My Angel released Jan 28 '16 Christmas
Chapter 32: A Bond Born on the Battlefield released Feb 21 '16
Chapter 32.5: Inside the Noisy Festival released Feb 21 '16 4-koma
Volume 7
Chapter 33: An Explosive Masquerade released Mar 10 '16
Chapter 34: A Wish Only God Knows released Mar 22 '16 Drunk
Chapter 35: Mako and the Blonde Angel released May 16 '16
Chapter 36: Sakuradai Natsuki and the Shadow Game released Jun 20 '16
Chapter 37: An Angel's Lost Property released Jul 25 '16
Chapter 37.5: Life with Little Sisters released Aug 15 '16
Volume 8
Chapter 38: A Worthy Rival released Oct 17 '16
Chapter 39: A Chocolate Bomb For Your Love released Dec 21 '17
Chapter 40: Writing an Unwritable Novel released Jan 5 '18
Chapter 41: The Little Rabbit and the Big Sister released Jan 14 '18
Chapter 42: The Three Approach released Feb 7 '18
Volume 9 on Mangadex