Maru-Maru Change-Kun

Sainan (彩南) may refer to:


 * Sainan Town, where all the main events occur in To Love-Ru world.
 * Sainan High, a school in Sainan Town where the protagonist Rito Yuuki attends;
 * Sainan First Elementary School, a school in Sainan Town where Mikan Yuuki attends;