Partner! You've gotta stop befriending these kind of guys!
I'm saying this as your best friend, trust me!

— To Kusuo about Shun, Volume 0, Chapter 06

Nendou Riki

Nendou Riki 1

Nendou manga

Arai Hirofumi as Nendou Riki

Character Name
Full Name Nendou Riki
Kanji 燃堂 力
Furigana ねんどう りき
Aliases Baron Cola (by Yuuta)
Personal Info
Age 17 years old
Birthday May 9
Blood type O
Gender Male
Height 181.3[1] cm
Weight 79 kg
  • Student
  • Convenience store cashier (Formerly)
  • Ramen shop employee (Formerly)
  • Waiter (Formerly)
School PK Academy
  • 2nd Year
  • 3
Novel Debut
Manga Debut Chapter 01
Anime Debut Episode 1
English Voice David Wald
Japanese Voice Miyake Kenta (ONA)
Live Action Arai Hirofumi

Riki Nendou (燃堂 力, ねんどう りき lit. Nendō Riki) is a dutiful and dull-witted boy. He likes helping people and prioritizing the weak.[4] Riki is one of the main characters of the series and was starred by Arai Hirofumi in the live action of the series.


Chara Nendou Full
Riki is evil in appearance and sloppy in behavior, and thus avoided by his classmates. His defining physical attribute is the scar on his left eye, something that can be used to differentiate between him, his father and mother who all have the same faces. His hair is cut in a weird way with his bangs colored yellow while the rest is black. In school, he wears the standard PK Academy uniform but keeps his uniform open showing a t-shirt. Outside the school, he mostly wears collared shirts.


Riki's dominant traits are his apparent lack of intelligence and the scar on his right eye. Despite his looks, he is actually pretty weak.[5] He is usually idiotic in manner and typically needs things to be explained to him countless times but he still cannot understand it.[6]
However, despite his villainous face and actions, Riki was a kind man which Kusuo himself thinks that only the latter thinks so as Riki would usually be judged by others as a delinquent boy. Due to his past as an owner of a hamster, when he got Kojikara No. 2 from Kusuo, he showed a great deal of patience and care to the hamster and the two got along so well he would sometimes take it with him to school.


When Riki was a freshmen, he was introduced as a bully that constantly picks on Kusuo and copies his notes. He later changed and became Kusuo's stalker after thinking that Saiki was the one who saved him when he was framed by Takahashi. Later that day, Riki became a protector of Kusuo, scaring any people passing by Kusuo and constantly pesters Kusuo to eat ramen once school ends. In a time skip, Riki was a sophomore along with Kusuo and Shun and the three are grouped together with Kusuo seen in center, the students thinks Kusuo is the leader of their group.


  • (To Kusuo) "Let's go get some ramen, partner!"
  • (To Kusuo) "Hurry, run away Saiki. Don't worry about me... run... It's my turn to save you so hurry!"
  • (To Kusuo) "Don't worry partner, I'll protect you!)"
  • (To Takahashi) "Well, since it was my first kiss, could you go easy on me?"
  • (To Kusuo about Shun) "Partner! You've gotta stop befriending these kind of guys! I'm saying this as your best friend, trust me!"


  • His childhood dream was to be a carpenter.
  • In his profile, Riki's blood type is said to be either O or B.[7]
  • Kusuo explains that the reason he can't read Riki's mind is because the speed of Riki's thinking is the same as the speed he talks.
  • His name is from the word Psychokinesis (サイコキネシス/念動力, Saikokineshisu/Nen Dou Riki).


  1. Chapter 239
  2. Deceased father
  3. Former step-father
  4. TV-Tokyo
  5. Saiki Kusuo no Psi Nan: Chapter 01
  6. Saiki Kusuo no Psi Nan: Chapter 8
  7. Volume 1 Nendou Riki Profile


v · e Nendou Family
Members: Takeuchi Riki · Nendou Midori · Nendou Riki
Miscellaneous: Nakanishi Kouta · Kojikara No. 2
v · e 2nd Year
Class 1-1: Kihachi Bunta · Nishi Soujirou · Sugiyama Haruo · Tanaka Ichirou
Class 2-2: Itano Yoriko · Ooshima Yuuji · Oohori Kouichi · Satou Hiroshi · Shinoda Takeru · Nakanishi Shinya · Maeda Takayuki · Suzumiya Harui · Toritsuka Reita
Class 3-3: Aiura Mikoto · Akechi Touma · Hairo Kineshi · Kaidou Shun · Kuboyasu Aren · Mera Chisato · Murata Shuuji · Nendou Riki · Saiki Kusuo · Saiko Metori · Sawakita · Takahashi · Teruhashi Kokomi · Yokota Jaga · Yumehara Chiyo · Zolbe Kageyukouji Saberlight
Class 4-4: Haruno Akio · Hotei Tomotaka · Tanihara Kenji
Class 5-5: Kumi Kouji · Matsuda Ippei · Mikami Aiko · Mishima Nobuaki