Isekai wa Smartphone to Tomo ni. 2

Synopsis

Touya oversees construction of his personal Frame Gear, Night-Baron. Love Goddess appears in person, claiming to be Touya's sister Karen, so she can have fun observing his relationships in person. Not quite coincidentally, Hildegard visits with Galen. Galen is impressed with Touya's intentions to share the Frame Gears between kingdoms, so he decides to convince his son, Lestia’s current king, to join the Alliance of Western Nations. Hildegard is clearly disappointed Touya has six fiancé's already, but after some meddling by Love Goddess, asks to become his seventh fiancé. Galen is unconvinced and demands a duel, though not with Touya but with Hildegard, to prove her resolve. Hildegard is accepted onto the Council of Brides but worries she may not defeat Galen, though the fiancé's are certain Touya has a plan. Touya does indeed, knowing Galen is a lecher, he distracts him during the duel with a holographic projection of a bikini clad woman. Hildegard wins, but the fiancé's demand to know why Touya has bikini pictures. Hildegard is curious about Touya's parents who no one has met (unaware that he isn't from this world), though Love Goddess assures them Touya will tell them when he is ready. She then thrills the fiancé's with Touya’s embarrassing childhood stories and prevents Kohaku from alerting Touya.

(Source: Wikipedia)