A spin-off of Lillia and Treize, Meg and Seron is a high school adventure/mystery/romance/comedy of sorts taking place in the rough equivalent of the 1950s. The story follows Seron, a stoic and handsome bookworm who is in love with his classmate–a sweet, oblivious transfer student named Meg.
Meg and Seron takes place at around the same time as Lillia and Treize, but knowledge of the main series is not necessary to read Meg and Seron.
- Volume 1 Prologue — Endings and Beginnings
- Volume 2 3 — The Voice
- Volume 3 Prologue — Why?
- Volume 3 3 — Research
- Volume 3 5 — A Role
- Volume 4 1 — Departure
- Volume 4 4 — Neil
- Volume 4 7 — The Leaders
- Volume 4 9 — Companions
- Volume 5 2 The Love Letter
- Volume 5 5 — Wristwatches
- Volume 1 3 — Meg
- Volume 6 2 — The Supervisor
- Volume 7 Prologue — Something Big
- Volume 7 3 — The Storm
- Volume 7 5 — The Request
- Volume 7 8 — Bridget
- Volume 1 5 — Nick, and Jenny
- Volume 1 8 — Hartnett
- Volume 2 1 — The Basement
- Volume 2 4 — The Letter
- Volume 3 1 — Arthur
- Volume 3 4 — Seron’s Dream
- Volume 3 6 — The Audience
- Volume 4 2 — Ercho Village
- Volume 4 5 — The Murder
- Volume 1 2 — Larry
- Volume 5 Prologue — During Summer Break
- Volume 5 3 Stella
- Volume 5 6 — The Trap
- Volume 6 Prologue — Something Big
- Volume 6 3 — Wherever you go, There you Remain
- Volume 7 1 — The Start of the Year 3306
- Volume 7 4 — The Witness
- Volume 7 6 — The Photograph
- Volume 7 9 — Even now, I feel the same
- Volume 1 6 — The Man Looking This Way
- Volume 2 2 — Sounds
- Volume 2 5 — The Newspaper Club
- Volume 3 2 — Sophia
- Volume 1 1 — Seron
- Volume 4 Prologue — The Conversations That Led up to That Day
- Volume 4 3 — Lawrence
- Volume 4 6 — The Investigation
- Volume 4 8 — The Photographs
- Volume 5 1 — The Start of the Fall Term
- Volume 5 4 Linus
- Volume 5 7 — Cana
- Volume 6 1 — Leena and Kurt
- Volume 6 4 — We are the Newspaper Club
- Volume 7 2 — The Question
- Volume 1 4 — Natalia
- Volume 7 7 — Kenneth
- Volume 7 10 — The Fiancée out of the Blue
- Volume 1 7 — Murdoch