City's second Champions League campaign began with a dramatic last-gasp 3-2 defeat to Real Madrid at the Bernabeu Stadium.
Aguero, who was linked with the Spanish champions last season, watched a pulsating encounter unfold from the bench as an unused substitute and is convinced City will bounce back. The former Atletico Madrid player tweeted after the game: "I feel comfortable and appreciated in @MCFC - it's a project I feel involved in. We want more titles and we'll get them!"
And to underline his commitment to the club after returning to a city where he is always the subject of press interest, he added: "Just to make it clear - I'm very happy to be in @MCFC. It's the best decision I could have taken."
Aguero, 24, scored 30 goals for City last season after joining the Barclays Premier League champions in a £38million club record deal.
He is yet to make an impression this season having suffered a knee injury in the opening Premier League fixture against Southampton last month.
He had hoped to make his return in the Spanish capital but events prevented manager Roberto Mancini bringing him on.
Mancini said: "I had two players injured, (Samir) Nasri and Maicon. I wanted to play Aguero in the last 20 minutes."
Source: PA
Source: PA