Awakening hidden power with いざとなれば
Grammar Explanation: When the time comes with いざ〜となると

Nagi and Maria have dressed Hayate up as a cat-eared girl. Klaus, the head butler, has warned that a Sanzenin butler must always act like a man, and Hayate fears he’ll be fired if Klaus sees him like this. Klaus spots him in the garden, takes him for an intruder, and gives chase. The outfit slows Hayate down, so he ties a cloth over his face to fight back unrecognized, only to find he can’t see.
- ハヤテ:
- 「ええい!! 人間いざとなれば眠れる力が目覚めるはず!!」
- “Argh!! When push comes to shove, a person's hidden power is bound to awaken!!”
- 「自分の目ではなく…心の目を信じるんだぁ!!!」
- “Not my own eyes... I'll trust my mind's eye!!!”
Key Points
- いざ means the moment is real, and となれば is the ば conditional of となる: “if it comes to that”.
- With nothing before となれば, the phrase names a crisis or decisive moment in general. What follows is what the speaker counts on in that moment.
- Hayate states a rule about people and then acts on it. He’s blindfolded and being chased, so for him the moment has come.
- This 眠れる isn’t the potential form “can sleep”. It comes from older Japanese and means 眠っている, “sleeping”.
- It survives in set phrases. 眠れる力 is strength lying dormant, and Sleeping Beauty is 眠れる森の美女 in Japanese.
- 人間 with no は means “people” or “human beings” in general. It’s common at the start of a sweeping statement.
- はず marks what he expects to happen based on what he believes: the hidden power “should” awaken.
- AではなくB means “not A but B”: not his own eyes, but his mind’s eye.
- 心の目 is the mind’s eye, seeing by intuition instead of sight.
- んだ after a dictionary-form verb can urge the listener, or here the speaker himself, to act. The stretched んだぁ turns it into a battle cry.
Vocabulary
人間 (Human being)
人間 means a human being or humanity. It can also refer to someone’s character or personality.
いざ (Actually, for real)
いざ marks the moment something stops being a plan and has to be done for real, as in いざ買うとなると, “when it actually comes to buying”. On its own, it’s an old-fashioned “Now then!” said before starting something.
なる (To become)
なる is to change into a different state or become something. It also means something turns out a certain way. It is also written 成る.
眠る (To sleep)
眠る is to sleep.
力 (Power)
力 is the power or strength to move or do something. It also means ability or skill.
目覚める (To wake up)
目覚める is to wake up from sleep. It also means for an ability, feeling, or awareness to awaken in someone, as in 才能に目覚める, “to discover a talent”.
自分 (Oneself)
自分 is oneself. It refers back to the person doing the action, and some speakers use it to mean “I”.
目 (Eye)
目 is the eye. It also means a look or a kind of experience, as in ひどい目, a bad experience.
心 (Heart, mind)
心 is the heart or mind, where a person’s feelings, thoughts, and will are. 心の目, “the mind’s eye”, is seeing or understanding without using your eyes.
信じる (To believe)
信じる is to accept that something is true, or to trust someone.
See Also
- Grammar: When the time comes with いざ〜となると
- Grammar: Hypothetical condition with 〜ば
- Grammar: Expectation with はず
- Grammar: Reasoning with 〜のだ
- Kanji: Dividing and portions with 分
- Kanji: People and persons with 人
- Kanji: Spaces and intervals with 間