In the present day, a demon emerges through the Sacred Tree at Higurashi Shrine with Setsuna, Towa’s twin, and the bounty hunter Moroha in tow. Towa, Setsuna, and Moroha struggle to battle the demon, whose powers have been strengthened with two Rainbow Pearls, but seeing Setsuna in trouble awakens Towa’s latent demon powers.
I'm guessing that's what 
bothers Setsu the most.
.أعتقد أنّ هذا أكثر ما يزعج سيتسونا-تشان
Das ist bestimmt das,
was Setsuna-chan nicht passt …
Eso es probablemente
lo que ha estado molestando a Setsu.
Y eso es algo que a Setsuna
parece fastidiarle bastante.
C’est sûrement ça qui te chagrine.
che sia ciò che più preoccupa Setsuna-chan.
Talvez seja isso
que esteja incomodando a Setsuna.
Полагаю, 
это больше всего и бесит Сэцуну.