June - This citadel is joyous, isn't it? S01E06

1

January - Don't Get Cocky

2

February - There's Nothing I Want to Say

3

March - It's one in ten thousand

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April - What is strength?

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May - Kindness is strength

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June - This citadel is joyous, isn't it?

7

July - Caring for Someone

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August - The Formation of the Ghost Extermination Rangers!

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September - That's the Kind of Past I Have

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October - The Really Important Memories

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November - A Stern Blow to Okita's Inheritance

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December - Our Citadel is the Hanamaru Today Too