In The Presence Of Companions, or his real name Giles Wickizer, is having his 26th birthday on July 13th, 2025. He talks to Ciel and Soleil on Zoom. This is a one-shot.

Solwa Kaito, or his real name Caesar Broydes, and his friend Solwa Meiko, or her real name Quintina Nemeth are having their birthdays on April 6th. Now with a 2025 chapter.

The Ultimate Challenger, or his real name Alden McGuire, is having his birthday on August 30th. Now with a 2022 chapter.

Snow Miku 2020 Participant #6, or her real name Miyuki Saitou, is having her birthday on August 29th. Now with a 2022 chapter.

Smiling Miku #3, or her real name Myda Seki, is having her birthday on June 26th. Now with a 2022 chapter.

All of the Beasties modules are celebrating their birthday on March 24th. Now with a 2022 chapter.

Last names go first, then first names, and finally module names. This is a one-shot.

My friends have both done a headcanon book about the Mikus, Rins, and Lens. I've decided to do one about the Kaito modules since Kaito is my favorite Vocaloid.

Symphony Kaito 2019, or his real name Shane Bryant, and his younger brother Sekai Symphony 2023 Kaito, or his real name Zane Bryant are having their birthday on June 6th. Now with a 2024 chapter.

Kimagure Mercy, or her real name Katherine Dullingham, is having her birthday on June 3rd. Now with a 2022 chapter.