Hyakuren No Haou to Seiyaku No Valkyria

The Wolf and Horn Clans celebrate their victory over the Hoof Clan when Steinþór, the patriarch of the Lightning Clan as well as an Einherjar with two runes and the murderer of the Horn Clan's previous patriarch, arrives unannounced. He and Yuuto have a brief face-to-face after which he peacefully leaves. After the celebration, Yuuto contacts Mitsuki, who scolts him for not calling in for such a long time. Later, Yuuto is visited by the daughters of the Claw Clan's patriarch, Albertina and Christina, who came to him with a marriage proposal. However, Yuuto rejects them, causing Christina to reveal that it just a test. She then reveals that she and her sister wish to become his daughters by oath as they had deemed him to be the greatest patriarch in Yggdrasil, which he accepts.

Yuuto and Felicia travel to a Horn Clan city, escorted by Albertina and Christina. The city's inhabitants were unwilling to accept their subjection by the Wolf Clan and refused to execute their policies. Luckily Linnea was there and convinced the people to try crop rotation. Linnea later confronts Yuuto about her marriage proposal, which he respectfully rejects. When asked why, Yuuto tells her about him being from the 21st Century and that he has a crush on Mitsuki. Yuuto is then informed that the Lightning Clan is preparing for war against the Wolf Clan. While Albertina and Christina volunteer to spy on the Lighning Clan, Yuuto does research on Steinþór and learns that he is actually a "brave fool" who can only use brute force, causing him to vow not to lose to him.