vashtii | Translation: “Futten Toppa ☆ LOVE IS POWER ☆” (Boueibu S2 OP)

First, you can hear the song here, courtesy of @d4ftka. Thanks! Lyrics are from utamap.com. It's a Boueibu OP, ofc, and that means it's full of gratuitous Japlish and kanji puns:

愛変わらず aikawarazu, usually spelt 相変わらず - means "the same as always", but here ai is spelt with the kanji for "love", making it mean “unchanging love”. 水入らず mizuirazu, meaning "without outsiders", literally means "without entering the water" or "out of the water".
フットバス futtobasu - literally, footbath! There's also a verb 吹っ飛ぶ futtobu, like the buttobasu it's paired with in Ryuu's line here, meaning "to blow away/blow up", like in an explosion. I went with "blow away" for the primary translation based just on how it would sound, but pick whichever you like best.
ARE 湯 (yu) READY? - "you" spelt with the kanji yu for hot bathwater.
There's a point where the lyric is written 地球 chikyuu (Earth, as in chikyuu boueibu - Earth Defence Club, duh), but pronounced hoshi (planet).

In places I've nerfed the Japlish to a straight transliteration where it really doesn't match the pronunciation (e.g. "HEART" to "haato")

Good stuff under the cut. Let me know what I messed up so I can fix it. :D

沸点突破☆LOVE IS POWER☆
futten toppa☆LOVE IS POWER☆
Boiling Point Breakthrough ☆ Love is Power ☆

LOVE IS BACK!! LOVE!!

愛のPOWERを (LOVE IS POWER)
ai no POWER o (LOVE IS POWER)
Boil with love's power, (love is power)

沸かせこのHEART (LOVE LOVE)
wakase kono haato (LOVE LOVE)
this heart! (love love)

愛変わらず水入らず　そうさ！
aikawarazu mizuirazu, sou sa!
It's only us, just like always, that's right!

愛はPOWER!!
ai wa POWER!!
Love is power!

(LOVE! LOVE! LOVE LOVE LOVE!) x3
(LOVE! LOVE! woo... LET'S GO!)

ダラけた心にアレが湧き上がる（愛！愛！愛！）
daraketa kokoro ni are ga wakiagaru (ai! ai! ai!)
It will boil in my once listless heart (love! love! love!)

正義の炎がソレで燃え上がる（ラララLOVE LOVE!)
seigi no honou ga sore de moeagaru (ra ra ra LOVE LOVE!)
Justice's flame will set me on fire with that (la la la, love love!)

今こそフローの時　愛のストック（愛！愛！愛！）
ima koso furou no toki, ai no sutokku (ai! ai! ai!)
Right now is when it flows, the stock of love (love! love! love!)

どんな敵もぶっ飛ばすフットバス（ライララライラーイ𝅘𝅥𝅮）
donna teki mo buttobasu futtobasu (rai ra ra rai raa 𝅘𝅥𝅮)
Whichever enemy attacks, we'll blow them away! (lai la la lai laai 𝅘𝅥𝅮)

夢の国　(SUPER SPA TIME)
yume no kuni (SUPER SPA TIME)
Dream's country (super spa time)

湯気の国　(BURST BATH TIME)
yuge no kuni (BURST BATH TIME)
Steam's country (burst bath time)

俺たちが待ってるぜ…浸かってるぜ！
ore-tachi ga matteru ze... tsukatteru ze!
We're waiting... we're soaking in the baths!

ARE 湯 READY?さあ行くぜ！！
ARE yu READY? saa iku ze!!
Are you ready? Let's go!

LOVE POWERを（LOVE IS POWER)
LOVE POWER o (LOVE IS POWER)
Boil with love's power, (love is power)

沸かせこのHEART
wakase kono haato
this heart!

愛と愛の愛し愛…TRUE LOVE☆
ai to ai no ai shi ai... TRUE LOVE☆
Love, 'cause love and love's love... true love ☆

愛のPOWERよ（LOVE IS POWER)
ai no POWER yo (LOVE IS POWER)
Love's power— (love is power)

限界超えろ
genkai koero
Break the limits!

愛は無限源泉温泉！ぞうさ！
ai wa mugen gensen onsen! sou sa!
Love's an infinite hot spring source! That's right!

愛はPOWER!!
ai wa POWER!!
Love is power!

(LOVE! LOVE! LOVE LOVE LOVE!) x3
(LOVE! LOVE! woo... LET'S GO!!)

あんな時も心にはアレがある（愛！愛！愛！）
anna toki mo kokoro ni wa are ga aru (ai! ai! ai!)
At times like that, that is in my heart (love! love! love!)

こんな時も心にはコレがある　（ラララLOVE LOVE）
konna toki mo kokoro ni wa kore ga aru (ra ra ra LOVE LOVE)
At times like this, this is in my heart (la la la, love love)

風呂とは浸かって初めて風呂となる　（愛！愛！愛！）
furo to wa tsukatte, hajimete furo to naru (ai! ai! ai!)
Soaking in the bath is always like the first bath (love! love! love!)

…わかんないけどとにかく温まる　（ライララライラーイ𝅘𝅥𝅮）
...wakannai kedo tonikaku atatamaru (rai ra ra rai raai 𝅘𝅥𝅮)
... We don't understand it, but we'll warm up anyway (lai la la lai laai 𝅘𝅥𝅮)

ホッとする（SUPER SPA TIME)
ho! to suru (SUPER SPA TIME)
We'll sigh with relief (super spa time)

HOTな湯（BURST BATH TIME)
HOT na yu (BURST BATH TIME)
Hot water (burst bath time)

みんなで入ろうぜ…最高だぜ？
minna de hairou ze... saikou da ze?
Let's get in with everyone ... isn't it the best?

MADE IN JAPAN せーのざばーーーん！！
MADE IN JAPAN seino zabaaan!!
Made in Japan, all dive in together!

この地球(ほし)を LOVE IS POWER)
kono hoshi o (LOVE IS POWER)
沸かすこのPASSION
wakasu kono PASSION
This passion (love is power)
That will boil this world

LOVEのLOVEはLOVEのLOVE…TRUE LOVE☆
LOVE no LOVE wa LOVE no LOVE... TRUE LOVE☆
Love's love is love's love... true love ☆

愛のPOWERよ（LOVE IS POWER)
ai no POWER yo (LOVE IS POWER)
Love's power—

沸点超えろ
futten koero
Break the boiling point!

愛は普遍永遠温泉！そうさ！
ai wa fuhen eien onsen! sou sa!
Love's an ever-present, eternal hot spring! That's right!

愛を胸に
ai o mune ni
Love is in our heart

時が経ってお湯が冷めても
toki ga tatte, o-yu ga samete mo
Even if time passes and the hot water gets cold

愛はここに生きている…FOR YOU
ai wa koko ni ikiteiru... FOR YOU
Love will live here... for you

愛のPOWERを（LOVE IS POWER)
ai no POWER o (LOVE IS POWER)
Boil with love's power, (love is power)

沸かせこのHEART
wakase kono haato
This heart!

愛と愛の愛し愛…TRUE LOVE☆
ai to ai no ai shi ai...TRUE LOVE☆
Love, 'cause love and love's love... true love ☆

愛のPOWERよ（LOVE IS POWER)
ai no POWER yo (LOVE IS POWER)
Love's power—

限界超えろ
genkai koero
Break the limits!

愛は無限源泉温泉！もっと！
ai wa mugen gensen onsen! motto!
Love's an infinite onsen source! Even more!

行こうぜ今沸点突破！そうさ！
ikou ze, ima futten toppa! sou sa!
Let's go, the boiling point is breaking now! That's right!

愛がPOWER!!
ai ga POWER!!
Love has power!