It's like "Urusei yatsura", but Ecchi and with a female lead less jaelous and more oppai, so it's better!
By the way, "TO LOVE RU" is also the name of the alien spaceships OS, and stand for: (T)echnlogy of (O)ver (L)evel (O)peration for (V)ery heavy command to (E)lectronic unit control Unit (RU)...RU!? RU RU (RUN)
By the way, "TO LOVE RU" is also the name of the alien spaceships OS, and stand for: (T)echnlogy of (O)ver (L)evel (O)peration for (V)ery heavy command to (E)lectronic unit control Unit (RU)...RU!? RU RU (RUN)