No Need for Tenchi is 1 of 2 spin off manga's written by Hitoshi Okuda. The manga is based on Tenchi Muyo OVA 1 and 2, but it is considered non-canonical. The series ran for 12 volumes, from December 16, 1994 to June 9, 2000. One interesting fact is that this manga often breaks the 4th wall, with the characters sometimes making comments about how "certain character appeared in certain volume or chapter", and similar.