Summer High Tension☆

High Summer Tension is the first track of Vol.2 Nagisa Hazuki & Rei Ryugazaki character song duet CD of the Free! anime. It is performed by color = > Nagisa Hazuki and  Rei Ryugazaki's seiyūs, Tsubasa Yonaga and Daisuke Hirakawa. The song was released on January 15, 2014.

Lyrics
Rōmaji = N: "Rei-chan, kocchi kocchi!" R: "Oh! Yarimashita ne, Nagisa-kun!" N: "Haha, Rei-chan, bishonure!" R: "Makemasen yo!" N: "Nee nee, tsugi wa acchi made oyoide miyou yo!" R: "Ii deshou!"

N: Joushou shiteku manatsu no BORUTEJI R: Kansoku shijou bunseki shijou

N: Arienai hodo moeteru taiyou to R: Bokutachi ga

N: Meippai hashaginagara R: Tsuikyuushi nagara

N: Ii yo ne, <font color=>R: Ee, ii deshou <font color=>Both: Motto jiyuu ni

<font color=>R: Pinto hazure na manatsu no iriguchi ni <font color=>N: Kangei suru yo binjou shite yo

<font color=>R: Arienai hodo wakuwaku shiteru jibun <font color=>N: Boku mo da yo!

<font color=>R: Seiippai mukiau kara, <font color=>N: Tanoshimechau kara

<font color=>R: Ii deshou, <font color=>N: Un, ii yo ne!

<font color=>R: Saa Fly High!! <font color=>Both: Ichiban nori shiyou

<font color=>Both: Tobikiri no kisetsu ga hajimaru yokan wo uketomete (Yeah!) <font color=>N: Moriagarou ne kono basho de <font color=>Both: Kirakira na hitomi ni utsutta mizushibuki no yukue (Yeah!) <font color=>R: Kugizuke ni naru

<font color=>N: Daisuki na nakama to <font color=>Both: Tokubetsu na kyou ni iru yo

<font color=>R: Omoigakenai sasoi ga kureta mono <font color=>N: Hakken shichaou jissen shichaou

<font color=>R: Chanto sekinin mo totte kudasai ne <font color=>N: “Makasetoite!”

<font color=>R: Tetteiteki tatakikonde <font color=>N: Jissai oyogikonde

<font color=>R: Riron! <font color=>N: Dake ja naku <font color=>Both: Joutatsu shiteiku

<font color=>N: Odoroki na koto mada mada okiru hazu <font color=>R: Keikensoku to terashiawase

<font color=>N: Genjitsu wa shousetsu yori sugoi kara! <font color=>R: “…Wakarimasu”

<font color=>N: Ketteiteki deai ni sansei <font color=>R: Iron wa arimasen

<font color=>N: Minna <font color=>R: Mochiron <font color=>N: Koko dakara <font color=>Both: Shizentai nanda

<font color=>Both: Korekara no mainichi kibun wa itsudemo aozora e (Yeah!) <font color=>R: TENSHON takaku ikimashou <font color=>Both: Bokutachi ga hipparu kurai no kimochi de tobikomeba (Yeah!) <font color=>N: Makikonjau ne

<font color=>R: Taisetsu na nakama to <font color=>Both: Ima ijou saikou no SCENE

<font color=>Both: Tobikiri no kisetsu ga hajimaru yokan wo uketomete (Yeah!) <font color=>N: Moriagarou ne kono basho de <font color=>Both: Kirakira na hitomi ni utsutta mizushibuki no yukue (Yeah!) <font color=>R: Kugizuke ni naru

<font color=>N: Daisuki na nakama to <font color=>Both: Tokubetsu na kyou ni iru yo Ima koko ga saikou no SCENE English= <font color=>N: “Rei-chan, over here!” <font color=>R: “Ah, you did it now, Nagisa-kun!” <font color=>N: ”Haha, Rei-chan, you’re sopping wet!” <font color=>R: “I won’t lose!” <font color=>N: “Hey, hey, let’s try swimming over there next.” <font color=>R: “Very well!”

<font color=>N: Summer’s intensity keeps rising, <font color=>R: I’ll keep observing and analyzing

<font color=>N: The sun’s burning unbelievably <font color=>R: And we are

<font color=>N: Joyfully pursuing our goal <font color=>R: With all our heart

<font color=>N: It’s okay, right? <font color=>R: Yes, it’s fine. <font color=>Both: Let’s be freer

<font color=>R: Summer begins unnoticed, <font color=>N: I welcome it, I can’t wait

<font color=>R: I find myself unbelievably thrilled, <font color=>N: Me too!

<font color=>R: I’ll face what comes with all my might <font color=>N: While having fun

<font color=>R: It’s fine, isn’t it? <font color=>N: Yeah, it’s okay! <font color=>R: Let’s fly high <font color=>Both: and be the first ones there

<font color=>Both: I feel that this season will be extraordinary (Yeah!) <font color=>N: Let’s get fired up in this place <font color=>Both: The destination of the water droplets reflected in glittering eyes (Yeah!) <font color=>R: Will keep us here

<font color=>N: I’ll spend a special today <font color=>Both: With my precious friends

<font color=>R: I received an unexpected invitation <font color=>N: Let’s start discoveries and new experiences

<font color=>R: Please take responsibility properly <font color=>N: “Leave it to me!”

<font color=>R: Learning thoroughly and <font color=>N: practicing swimming

<font color=>R: Is not only <font color=>N: Theory, <font color=>Both: Let’s keep progressing

<font color=>N: Surprising events will surely happen, <font color=>R: More experience and comparisons

<font color=>N: Reality is more amazing than a novel! <font color=>R: “…I know”

<font color=>N: I approve a decisive meeting <font color=>R: I have no objections

<font color=>N: We’re all <font color=>R: relaxed because <font color=>N: we are here, <font color=>Both: of course

<font color=>Both: We’ll send our emotions to the blue sky everyday from now on (Yeah!) <font color=>R: Let us be in high spirits and go <font color=>Both: If we dive in with the feelings that pull us ahead (Yeah!) <font color=>N: We’ll get closer

<font color=>R: And with our precious friends <font color=>Both: see the best scene ever together

<font color=>Both: I feel that this season will be extraordinary (Yeah!) <font color=>N: Let’s get fired up in this place <font color=>Both: The destination of the water droplets reflected in glittering eyes (Yeah!) <font color=>R: Will keep us here

<font color=>N: I’ll spend a special today <font color=>Both: with my precious friends This moment right now is the best scene