"TRIBUTE TO TO-Y" is a tribute book in which a total of 33 people participate to commemorate the 35th anniversary of the birth of To-y.

A collection of chapters from various one-shot anthologies included as extras with the purchase of certain "Fellows!" magazine volumes including Maid Fellows, Robot Fellows, Music Fellows, Megane Fellows, and China Fellows.

An anthology manga based on Kimi ga Nozomu Eien, published by Twin Hearts Comics.

A booklet packaged with Fellows! volume 13 at select stores. It's an anthology of one-shots centering on the theme of nonhuman characters. (Source: Natalie, translated)

A booklet packaged with Harta volume 24 at select stores. It's an anthology of one-shots from various authors centering on the theme of hobbies. (Source: Natalie, translated)