Houkago Saitensei!

Ten years ago, a magic circle suddenly appeared above Earth, connecting it to the parallel world Alterna. This led to the invention of the Alternaphone, which allows people to freely reincarnate between worlds, allowing earthlings to become adventurers and otherworlders to become normal citizens. The series follows two amnesiac girls, earthling Kurami Utaho and otherworlder Melua Solaris, as they go back and forth between ordinary life on Earth and adventuring on Alterna.

37 chapters

• Chapter 18.1 — Pixiv Extras
• Chapter 18 — Once Again, In An Everyday (Other)World
• Chapter 17.1 — Pixiv Extras
• Chapter 17 — Reach for the stars (Those who reach out to the stars)
• Chapter 16 — Reach for the stars (The Star That Cannot Be Reached)
• Chapter 15.1 — Pixiv Extras
• Chapter 15 — Human (and) Being
• Chapter 14.1 — Pixiv Extras
• Chapter 14 — The Daily Routine of (Insane) Girls
• Chapter 13.1 — Pixiv Extras
• Chapter 13 — Rollout Truth (Fake)
• Chapter 12.1 — Pixiv Extras
• Chapter 12 — Heart (Door)
• Chapter 11.1 — Pixiv Extras
• Chapter 11 — (DX) Keeper
• Chapter 10.1 — Pixiv Extras
• Chapter 10 — (Violent) Force
• Chapter 9.3 — Extra: My Quiet Best Friend Suddenly Confessed To Me And Then Suddenly Dumped Me
• Chapter 9.2 — Extras: All Kinds of Girls
• Chapter 9.1 — Twitter/Pixiv Extras
• Chapter 9 — New Characters Join the Battle! (Otherworld Reaction)
• Chapter 8.1 — Pixiv Extras
• Chapter 8 — With the Light (and Friends)
• Chapter 7.1 — Pixiv Extras
• Chapter 7 — School (Other) Side!
• Chapter 6.1 — Pixiv Extras
• Chapter 6 — Role Playing (Gamer)
• Chapter 5.1 — Pixiv Extras
• Chapter 5 — For my (Precious Thing's) Sake
• Chapter 4.1 — Pixiv Extras
• Chapter 4 — (Bad) Morals
• Chapter 3.1 — Pixiv Extras + April Fools
• Chapter 3 — The Strongest in Another World? I Don't Have Any "Memory" Of That, So What? (A Beautiful Gamer Girl, Her Beautiful Friends and Their Kya Kya Ufufu Reincarnation Life)
• Chapter 2.1 — Pixiv Extras
• Chapter 2 — Dangerous Girl(s)
• Chapter 1.1 — Pixiv Extras
• Chapter 1 — Our (Ab)Normal Everyday World