Ep. 10: Masa lalu Kurama mengungkap keterkaitannya dengan proyek diclonius dan kelahiran Mariko.
Kurama's past is explained in this episode. He was a good friend of Professor Kazukawa, who invited Kurama to work with him and his father on the diclonius project after leaving university. He reluctantly agrees, however, as he is performing research, he is infected with the diclonius virus via transmission through their vectors, and as a result, his daughter Mariko is born a diclonius. He decides to kill her, however as his wife dies from complications after giving birth, begging him to spare her, Kurama chooses to let her live under Kazukawa's condition that bombs must be planted inside her to kill her in case she turns aggressive. Meanwhile, as both Lucy and Nana are now part of Kohta's household, the facility decides to send "the most powerful" diclonius, known only as "No. 35". (Source: Wikipedia)
Episode
- Ep. 6 · Bando melarikan diri dari rumah sakit mencari Lucy sementara tubuh Kakuzawa ditemukan
- Ep. 7 · Nana menerima anggota tubuh dan uang baru, lalu bertemu Mayu di pemakaman sebelum kembali ke rumah Kohta.
- Ep. 8 · Nana mengungkapkan kepolosannya sementara Mayu mengungkap identitas asli Lucy dan rahasia Nyu.
- Ep. 9 · Masa lalu Lucy bersama Kohta terungkap melalui kotak musik dan kunjungan ke kebun binatang.
- Ep. 10 · Masa lalu Kurama mengungkap keterkaitannya dengan proyek diclonius dan kelahiran Mariko.
- Ep. 11 · Mariko, identitas sejati No. 35, dilepaskan untuk mengambil alih Lucy sementara Nana merasakan niat mematikan tersebut.
- Ep. 12 · Kohta menghadapi balas dendam masa lalu Lucy sementara Mariko dan Bando menyasar dirinya.
- Ep. 13 · Mariko mendapatkan kembali vektornya dan menghadapi Lucy, yang mengarah pada pertemuan terakhir yang tragis dengan ayahnya, Kurama.