Four-Character Idiom · Combat & Force · Kyojuro Rengoku
一意専心
Meaning
To pour the whole of one's mind into a single pursuit, undividedly.
ひたすら一つのことに心を注ぎ込むこと。代々一つの呼吸を極め続ける煉獄家の姿勢。
The Kyojuro Rengoku line
Verbatim from the source article
「炎の呼吸 壱ノ型 不知火」
"FLAME BREATHING FIRST FORM UN-KNOWING FIRE!"
Why it fits Kyojuro Rengoku
Flame Breathing is hereditary in the Rengoku family — Kyojuro inherits the same form his father, grandfather, great-grandfather practised. The single-mindedness of staying inside one Breath for that many generations is the literal lineage form of ichii-senshin.
Sources
- デジタル大辞泉 — 一意専心 (dictionary)
- 精選版 日本国語大辞典 — 一意専心 (dictionary)