Sanda anime opening but it's AI.

Otona ni natte shimaimashita Anata wa hyouri ittai kodomo no mama Kotoba o haite shimaimashita Watashi wa kongo issai torikesenu mama Todokanai omoi no saki ni Tadashisa nante nakute douka kono mama Surechigau kisetsu no aida ni watashi ga Naitemashita kitto sono mama Shinjirannai ne Zetsubou? Kandou? Shiroku natta yoru wa taezu kuroku natte Ā nanimo kanmo mou kawaranai? Wakaranai! Doushitatte mata kono shunkan o tsunaide ita Kyou wa kitto kanaeraremasu you ni Don't stop!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Anata kara..... ubatta adaruto-chikku na kokoro Mata wasurenai kara Otona ni natta watashi mo anata mo Kawaranai kara Mou ii yo Ubata adaruto-chikku na kokoro Mada wasurenai kara Kawatte shimatta watashi mo watashi dakara Koukai to negatta inori Chirudoren watashi Nanimo wakannai kara Kanatta omoi, shinjite Tadashi, watashi owaranai kara! Toudatta naifu Kotoba ni wa onaji kurai itai ketsuki ga atte Yowatta raifu Kokoro no sappuukei no oku ga zutto itakute "Baibai jaane mata ashita" Wasurete shimau anata ga kowakute Daitai sonna mono de shika hakarenai ne, watashitachi Zetsubou mo junsui datta kanjou Tashika de futashikana koe mo ai mo shiranai furi shite Ikite ikundesu ka? Muri shite waraenai na Aimai ni shite shinde itta "hontou" ga Adaruto-chikku no akashi desu Zetsubou mo junsui mo unmei mo kagi kakko Maa ikka Ubata adaruto-chikku na kokoro Mata wasurenai kara Otona ni natta watashi mo anata mo Kawaranai kara Mou ii yo Ubata adaruto-chikku na kokoro Mada wasurenai kara Kawatte shimatta watashi mo watashi dakara Ubata adaruto-chikku na kokoro Mata wasurenai kara Otona ni natta watashi mo anata mo Kawaranai kara Mou ii yo Ubata adaruto-chikku na kokoro Mada wasurenai kara Kawatte shimatta watashi mo watashi dakara Koukai to negatta inori Chirudoren watashi Nanimo wakannai kara Kanatta omoi, shinjite Tadashi, watashi owaranai kara!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!