is a Japanese monthly ''shōnen'' manga magazine published by

Kodansha is a Japanese privately-held publishing company headquartered in Bunkyō, Tokyo. Kodansha is the largest Japanese publishing company, and it produces the manga magazines ''Nakayoshi'', ''Afternoon'', ''Evening'', ''Weekly Shōnen Magazine'' an ...

, and first issued in May 2005. It is issued in perfect-bound B5 format and retails for 580 yen. ''Monthly Shōnen Sirius'' is aimed at readers aged 16–21. The magazine also serializes manga through their ''Twi Siri'' Twitter account.

Current series

''Twi Siri'' series

References

External links

* 2005 establishments in Japan Monthly manga magazines published in Japan Kodansha magazines Magazines established in 2005 Shōnen manga magazines {{anime-mag-stub