No "Senpai" Allowed!

No Upperclassmen Allowed! (先輩禁止) is the tenth episode of the ''Love Live! School idol project'' anime series. It was aired on March 10, 2013.

Summary
As the weather is hot, Honoka suggests that the group go on a training camp to the beach, with Maki coerced into letting them use her family's vacation home. Wanting to break down the barriers between underclassmen and upperclassmen, Eli creates a rule that no one is allowed to call their upperclassmen with the honorifics 'senpai' for the duration of the trip. From this rule, almost everyone is able to do this, except Hanayo, who still sometimes spontaneously calls her upperclassmen with the honorifics 'senpai'.

The girls spend the day playing around on the beach, although Eli and Nozomi are quick to notice that Maki doesn't seem to be participating. After dinner and a bath, Nozomi helps Maki become more sociable by initiating a pillow fight, blaming it on Maki. However, when a pillow accidentally hits a sleeping Umi. Awakened and angry, Umi begins by throwing her "Supersonic Pillows" at Nico out of crankiness, knocking her out instantly. As Honoka and Eli tries to counterattack, they were quickly taken down by Umi, frightening Hanayo and Rin. Maki, however, ends up participating, cooperate with Nozomi and knocks Umi out.

At the end of this trip, μ's somehow manages to completely break down the barriers between upper and underclassmen in the club. The episode ends with all the members of μ's holding hands and watching the sunrise.

Cast

 * Nitta Emi as Kousaka Honoka
 * Nanjou Yoshino as Ayase Eli
 * Uchida Aya as Minami Kotori
 * Mimori Suzuko as Sonoda Umi
 * Iida Riho as Hoshizora Rin
 * Pile as Nishikino Maki
 * Kusuda Aina as Toujou Nozomi
 * Kubo Yurika as Koizumi Hanayo
 * Tokui Sora as Yazawa Nico

Members of μ's

 * 1) Honoka Kosaka
 * 2) Eli Ayase
 * 3) Kotori Minami
 * 4) Umi Sonoda
 * 5) Rin Hoshizora
 * 6) Maki Nishikino
 * 7) Hanayo Koizumi
 * 8) Nozomi Tojo
 * 9) Nico Yazawa

Trivia

 * Several aspects of this episode pay homage to Natsuiro Egao de 1,2,Jump!'s music video. Notable similarities between the music video and anime include:
 * Maki sitting under the shade while the other members play by the sea.
 * Nico stealing the watermelon away from Hanayo while playing.
 * The girls viewing the horizon of the sea together (a sunset in Natsuiro Egao de 1,2,Jump!'s music video and a sunrise in the anime).