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・Entrance ceremony
・Opening day [First semester : April to October]
・Kaisei Race (Regular boat competition with Kaisei High School)
*The regatta, which started in1920, is the oldest Japanese regatta |

Kaisei Race |
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・Training excursion (11th grade)
・Teaching practice (1st period)
・Students' general meeting |

Student's general meeing |
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・In-sen(Regular general competition with Gakushuin High School)
*this competition started as an interschool match between baseball clubs, and developed into a general athletics competition between the two high schools
・Mid-term exams
・Career guidance (11th grade)
・Comprehensive exams (1st, 12th grade) |

In-sen |
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・Camp at Tateshina (10th grade)
・Asia-Pacific Young Leaders Summit (in Singapore) |

Tateshina Mt. |
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・Training camp of clubs
・School open forum |

Training camp |
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・Toin-sai (Annual school festival)
・Teaching practice (2nd period) |

Toin-sai |
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・Term-end exams
・End of first semester
・Opening day [Second semester: October to March]
・Sports festival
・School explanation
(for junior high school students and their parents or teachers) |

Sports festival |
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・Junior's school excursion (Kyoto, Okinawa, Singapore, etc.)
・Comprehensive exams (2nd, 12th grade)
・Field study (10th & 12th grades) |

Junior's school excursion |
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・Study Convention
・Year-end exams (12th grade)
・Mid-term exams (10th & 11th grades) |

Study Convention |
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・Entrance exams for attached junior high school |

Kan-geiko (Judo club) |
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・Entrance exams |

Hyakunin-Isshu Match |
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・Year-end exams (10th & 11th grades)
・Graduation ceremony
・Year-end day |

Graduation ceremony |